Watch: At least 84 dead in 'terrorist' Nice truck attack

A gunman smashes a truck into a crowd of revellers celebrating Bastille Day in the French resort of Nice, killing at least 84 people in what President Francois Hollande declared a "terrorist" attack.

Interior ministry spokesman Pierre-Henry Brandet said 84 people were killed and scores injured, including 18 in "critical condition". Bastille Day is a celebration of everything France holds dear -- its secular republic and the values of "Liberte, Egalite, Fraternite" (Freedom, Equality, Fraternity).

The truck was riddled with bullet holes and badly damaged, with burst tyres. Robert Holloway, an AFP reporter who witnessed the white truck driving at speed into the crowd, described scenes of "absolute chaos".